Navigation Links
Sweet nanotech batteries
Date:4/10/2008

Nanotechnology could improve the life of the lithium batteries used in portable devices, including laptop computers, mp3 players, and mobile phones. Research to be published in the Inderscience publication - International Journal of Nanomanufacturing - demonstrates that carbon nanotubes can prevent such batteries from losing their charge capacity over time.

Researchers at the Shenyang National Laboratory for Materials Science, in China, have been investigating how to improve the kind of rechargeable batteries that are almost ubiquitous in today's portable devices. Mobile phones, mp3 players, personal digital assistants (PDAs), and laptop computers usually use lithium-ion batteries to give them portability. However, Li-ion batteries suffer from degradation especially when they get too hot or too cold and eventually lose the capacity to be fully recharged. This means a loss of talk time for mobile phone users and often no chance to use a laptop for the whole of a long haul flight.

The problem of the slow degradation of Li-ion batteries is usually due to the formation of a solid electrolyte interphase film that increase the batteries internal resistance and prevents a full recharge. Researchers have suggested using silicon in the composition of the negative electrode material in Li-ion batteries to improve charge capacity. However, this material leads to even faster capacity loss as it repeatedly alloys and then de-alloys during charge-discharge cycles.

Shengyang's Hui-Ming Cheng and colleagues have turned to carbon nanotubes (CNTs) to help them use silicon (Si) as the battery anode but avoid the problem of large volume change during alloying and de-alloying. Carbon nanotubes resemble rolled-up sheets of hexagonal chicken wire with a carbon atom at the crossover points of the wires and the wires themselves being the bonds between carbon atoms, and they can be up to a millimeter long but mere nanometers in diameter.

The researche
'/>"/>

Contact: Hui-Ming Cheng
cheng@imr.ac.cn
Inderscience Publishers
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Slow federal action to oversee nanotechnology leaves room at the bottom
2. NYU chemist Seeman recognized for founding, establishing the field of structural DNA nanotechnology
3. New nanotechnology television series does sweat the small stuff
4. Federal nanotech risk research plan still comes up short
5. Religion colors Americans views of nanotechnology
6. Nanotechs health, environmental impacts worry scientists and the public
7. National Nanotechnology Initiative releases its fiscal year 2009 budget and highlights
8. Fiber-based nanotechnology in clothing could harvest energy from physical movement
9. Advance Nanotech Announces Shareholder Proxy Vote Results
10. New funding to charge energy research at UCL and the London Centre for Nanotechnology
11. European Commission gives grant to investigate transatlantic oversight of nanotech
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... YORK , Sept. 30, 2014 ... and segments with highest potential revenues Do you ... updated report gives you revenue predictions for those ... For those therapies you find financial data, R&D ... analysis you get sales forecasts to 2024 at ...
(Date:9/30/2014)... Proove Biosciences , the commercial and research leader in ... test built upon research from their published P.A.I.N. Study. ... physicians with an objective way to understand theirs patient’s ... individuals. With this new test, physicians will be able ... that will affect their pain tolerance. , The P.A.I.N. ...
(Date:9/30/2014)... 2014 Fast, semi-automatic creation ... in documents ChemAxon , a ... services for life science research, launches ChemCurator, an ... structures from documents. Markush structures are ... generating and understanding Markush structures is a difficult ...
(Date:9/30/2014)... 30, 2014 BioHealth Innovation, Inc. ... biohealth innovations and increasing access to early-stage funding in ... venture capitalist, Tania Fernandez , Ph.D., has joined ... will be a member of the management team for ... to $50 million in seed and early-stage equity investments ...
Breaking Biology Technology:Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3ChemAxon Introduces ChemCurator for Chemical Information Extraction and Markush Structure Creation 2Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2
... convertible notes, and extended the maturity to 2011 on an additional $23.25 ... ... Cell Therapeutics, Inc.,("CTI" or the "Company") (Nasdaq and MTAX: CTIC) today announced ... "New Notes") due 2011 and 5,459,574 shares of its common stock,no par ...
... Biosciences,Inc. (Nasdaq: NBIX ) announced today that the ... Administration (FDA) indicating,that the New Drug Application (NDA) for ... of insomnia is approvable pending additional clinical and,preclinical data., ... action letter from the FDA,stating that indiplon 5 mg ...
... Company Mails Letter to Shareholders, MONTVALE, N.J., ... today announced that Glass Lewis & Co., one ... that Datascope,shareholders re-elect the Board,s nominees -- James ... Company,s Annual Meeting of Shareholders on,Thursday, December 20, ...
Cached Biology Technology:Cell Therapeutics, Inc. Announces Issuance of $23.25 Million in New Convertible Senior Notes in Exchange for $36.08 Million of Existing Convertible Senior Subordinated and Subordinated Notes 2Cell Therapeutics, Inc. Announces Issuance of $23.25 Million in New Convertible Senior Notes in Exchange for $36.08 Million of Existing Convertible Senior Subordinated and Subordinated Notes 3Neurocrine Receives Approvable Letter for Indiplon Capsules with Additional Safety and Efficacy Data Required by FDA 2Neurocrine Receives Approvable Letter for Indiplon Capsules with Additional Safety and Efficacy Data Required by FDA 3Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 2Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 3Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 4Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 5Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 6Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 7
(Date:9/30/2014)... engineers, led by Clemson University associate professor Brian ... from the U.S. Department of Energy,s Experimental Program ... positive impact on South Carolina in the advancement ... , "Understanding the scientific and engineering needs for ... nuclear technologies is imperative if South Carolina is ...
(Date:9/30/2014)... DURHAM, N.C. -- Pollution in urban and farm runoff ... a new study finds. , The study, published ... shows that nitrogen in the runoff ends up in ... tumors on the animals, eyes, flippers and internal organs. ... and the National Oceanic and Atmospheric Administration (NOAA) conducted ...
(Date:9/30/2014)... release is available in German . ... their behavioural response to risky situations such as exposure ... Ornithology now found in a long-term study on different ... both metabolic rate and ambient temperature. High metabolic rates ... as in these scenarios birds were more likely to ...
Breaking Biology News(10 mins):Researchers get $5.25 million to advance nuclear technologies in South Carolina 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3Risky metabolism 2
... Research on Aging (Novato, CA) and Biotica Technology Ltd. ... polyketides in diseases of aging. Building on observations that ... Kennedy; Nature 2009), the collaborators will evaluate ... of age-related disease models to identify novel therapeutics. ...
... no crime. Consider that some strains of algae ... the less harmful varieties suck oxygen out of water, ... Recent algal blooms in the Great Lakes, for instance, ... Andr Hudson and colleagues have figured out how to ...
... Cornell University researchers may have solved a 100-year puzzle: ... that therapies to treat Alzheimer,s disease, multiple sclerosis and cancers ... Journal of Neuroscience , Sept. 14, 2011.) , The ... can modulate the entry of large molecules into the brain. ...
Cached Biology News:Buck Institute and Biotica to investigate polyketides in extension of healthy lifespan 2Outsmarting algae -- RIT scientist finds the turn-off switch 2Breaching the blood-brain barrier 2
...
... XT is undoubtedly the most complete and ... concept of layers and subsets makes it ... for different data outputs, for example Cy3 ... as well as different subsets of genes ...
...
...
Biology Products: